{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DS1337C#T&R","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"DS1337CTR","canonicalUrl":"https://icboms.com/analog-devices/DS1337CTR","factsUrl":"https://icboms.com/api/mcp/products/DS1337C%23T%26R","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices DS1337C#T&R Clock/Calendar RTC, I²C 2-Wire Serial Interface, 1.8V–5.5V Supply, 0.6µA Timekeeping, 16-SOIC Wide, Tape & Reel.","salesMarkdown":"## 0.6 µA timekeeping — battery-life budget for portable gear The DS1337C#T&R: Timekeeping current draws a maximum of 0.6 µA at 1.3 V to 1.8 V on the backup supply. For a product that spends most of its life on a coin cell, that current sits below the battery's self-discharge rate — a 225 mAh CR2032 lasts over 40 years in theory, so the cell's shelf life, not the RTC, sets the backup duration. ## I²C interface and 16-SOIC wide-body — layout and bus-fit The I²C (2-wire serial) interface uses the standard SDA/SCL pair, so the DS1337C#T&R sits on any I²C bus without dedicated chip-select lines. The 16-SOIC wide-body package (7.50 mm body width) matches the footprint used by many other RTCs and EEPROMs — a single PCB land pattern can serve multiple BOM options. An outdoor IoT node or an enclosure near a motor drive that sees 70 °C ambient still has margin before the RTC drifts or fails to communicate. ## Alarm, leap year, square wave — firmware overhead savings On-chip features include an alarm comparator, automatic leap-year correction through 2099, and a programmable square-wave output. The alarm output can wake a sleeping microcontroller without polling the RTC, saving firmware complexity and bus traffic. The square wave (selectable frequencies) serves as a low-jitter clock for a secondary timer or a watchdog heartbeat.","metaTitle":"DS1337C#T&R Clock/Calendar RTC, I²C, 16-SOIC, Active","metaDescription":"Analog Devices DS1337C#T&R Clock/Calendar RTC with I²C interface, 0.6µA timekeeping, 1.8V–5.5V supply, -40°C to +85°C, 16-SOIC.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Type":"Clock/Calendar","Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"Alarm, Leap Year, Square Wave Output","Interface":"I²C, 2-Wire Serial","Date Format":"YY-MM-DD-dd","Time Format":"HH:MM:SS (12/24 hr)","Mounting Type":"Surface Mount","Package / Case":"16-SOIC (0.295\\\", 7.50mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"1.8V ~ 5.5V","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"16-SOIC","Current - Timekeeping (Max)":"0.6µA @ 1.3V ~ 1.8V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.37","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$6.37000","currency":"USD"},{"qty":10,"price":"$5.75400","currency":"USD"},{"qty":25,"price":"$5.48680","currency":"USD"},{"qty":100,"price":"$4.76420","currency":"USD"},{"qty":250,"price":"$4.55004","currency":"USD"},{"qty":500,"price":"$4.14858","currency":"USD"},{"qty":1000,"price":"$3.61328","currency":"USD"},{"qty":2000,"price":"$3.47945","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What compliance documentation does Analog Devices provide for DS1337C#T&R?","answer":"The DS1337C#T&R is RoHS3 compliant (RoHS exemption status per directive 2011/65/EU). Analog Devices provides the standard RoHS certificate of compliance and material declaration; no UL or IEC certification is listed for this part."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/DS1337CTR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/DS1337CTR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T18:23:48.651Z","lastPublished":"2026-07-20T18:23:48.651Z","indexable":true}}